Crossword Puzzle on Inorganic Chemistry ACROSS 2. Principal ionic constituent of igneous rocks 9. Color of liquid bromine 10. Symbol of the element for which a coin is named 11. Symbol for an element prepared by the Hall process 12. Principal source of magnesium 14. A ehalcogen 15. A halide which on oxidation gives a red liq,lid 21. Forms 15 across 23. Where mast rare gases are found 24. Main bod" of the hvdrosnhere 29. 31. 32. 33. 34. 37. 38. 41. 42.
Solid phase of an important liquid Viscous, black liquid hydrocarbons See 19 across An alkaline earth which gives a crimson flame test Prefix for eight See 32 down Mineral form of Mg2SiOn A heavy alkali An important constant
46. 47. 48. 49.
A radioactive halogen The commercially most important halogen Group VIIA elements A multidentate complex DOWN
1. Prefix far four 3. On oxidation, it forms a purple solution in carbon tetrachloride 4. A scarce group IIIAelement 5. Geometrical designation of two groups an the same side 6. A silicate mineral that has lubricant properties 7. The basic kind of matter 8. The element preceeding 13 down
12. Generic name for asilicon hydride 13. Arare earth used to prepare a red phosphor 16. 01 17. ~ k i n e r athat l has a sheet-like structure 18. Toremove activity 22. Symbol for prescription(pharm) 26. A metallic group VA element 28. The most abundant metal 30. Symbol for element with 3d54s1 configuration 32. A group VIll element which forms many inert d6 &ordination complexes 35. Obsolete name for Ce(lV) 36. RNH2 37. Its mineral source is chromite 38. A semiprecious gem 39. Atomic number 3 40. A platinum metal 46. Forms photosensitive halides 47. Metallic element in limestone Leonard F. Druding
Rutgers University Newark, New Jersey 07102
(Solutionon p. 798)
Volume 50. Number 11. November 1973
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